Investigation of NiTi based damper effects in bridge cables vibration response: damping capacity and stiffness changes
| العنوان: | Investigation of NiTi based damper effects in bridge cables vibration response: damping capacity and stiffness changes |
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| المؤلفون: | Luc Saint-Sulpice, Thibaut Lecompte, Philippe Pilvin, Lamine Dieng, Guillaume Helbert, Shabnam Arbab Chirani, Sylvain Calloch |
| المساهمون: | Institut de Recherche Dupuy de Lôme (IRDL), Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-École Nationale Supérieure de Techniques Avancées Bretagne (ENSTA Bretagne)-Université de Bretagne Sud (UBS), Structures Métalliques et à Cables (IFSTTAR/MAST/SMC), Institut Français des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux (IFSTTAR)-PRES Université Nantes Angers Le Mans (UNAM) |
| المصدر: | Engineering Structures Engineering Structures, Elsevier, 2018, 165, pp.184-197. ⟨10.1016/j.engstruct.2018.02.087⟩ |
| بيانات النشر: | HAL CCSD, 2018. |
| سنة النشر: | 2018 |
| مصطلحات موضوعية: | Materials science, 02 engineering and technology, Vibration, Damping, Damper, [SPI.MAT]Engineering Sciences [physics]/Materials, Damping capacity, Nickel-titanium, [SPI]Engineering Sciences [physics], 0203 mechanical engineering, medicine, Civil and Structural Engineering, business.industry, Stiffness, Structural engineering, Shape-memory alloy, Dissipation, 021001 nanoscience & nanotechnology, 020303 mechanical engineering & transports, Martensite transformation, Nickel titanium, Martensite, medicine.symptom, 0210 nano-technology, business, Bridge cables |
| الوصف: | International audience; Due to aerodynamic instabilities induced by combination of rain and wind, civil engineering cables are submitted to cyclic loadings during their whole operating life. To prevent them from fatigue issues, internal and external dampers are increasingly used. Recently, innovative damping devices based on Shape Memory Alloys have demonstrated a true efficiency, thanks to their dissipation properties. Indeed, near-equiatomic Nickel-Titanium alloys (NiTi) present an interesting damping capacity due to a solid-solid displacive phase transformation of austenite into martensite. This transformation occurs under thermal and/or mechanical loadings. Two different damping devices embedding NiTi wires are presented in this paper. Both are evaluated ad hoc, using a full-scale vibration cable bench under several loading and environment configurations. The effectiveness of the damping device has been demonstrated. A direct link has been made between the system “cable + damper” vibration response and NiTi behaviour. First, results show that several damping regimes observed during mitigation of the cable vibration amplitude are due to NiTi microstructural changes and phase transformations. Secondly, this paper demonstrates that stiffness and vibration frequency changes are governed by the NiTi stress-strain curve secant stiffness modulus. |
| اللغة: | English |
| تدمد: | 0141-0296 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::690b5649ec6347949b2cedf1302817b6 https://hal-ensta-bretagne.archives-ouvertes.fr/hal-01804194/document |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....690b5649ec6347949b2cedf1302817b6 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 01410296 |
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